Tennessee Code Title 4. State Government § 4-3-1104

(a) In order to discharge the functions of this department, there are hereby created within the department the following divisions:

(b) The commissioner shall assign to the divisions the functions and duties imposed upon the department. The commissioner may combine, consolidate or abolish any of the divisions, or create such new divisions as are necessary to carry out the duties imposed upon the department, subject to the approval of the commissioner of finance and administration.